Margaret married Richard De Clare, [Earl of Glouces about Sep 1236 in St Edmund's, Wexford, Ireland. Richard (son of Gilbert De Clare :[Earl Of, LOUCESTER] and Isabel Marshall, [COUNTESS OF COR) was born on 4 Aug 1222 in , , Gloucestershire, England; died on 15 Jul 1262 in Ashenfield Manor, Waltham, Kent, England; was buried on 28 Jul 1262 in , Tewkesbury, Gloucestershire, England. [Group Sheet] [Family Chart]